ideacentre
720 Series
Quick Start Guide
Replacing or upgrading hardware
Safety information for replacing CRUs
Do not open your computer or attempt any repairs before reading the “Important
safety information” in the Safety, Warranty, Environment, Recycling Information
Guide and Important Product Information Guide that was included with your
computer.
If you no longer have this copy of the Safety, Warranty, Environment, Recycling
Information Guide and Important Product Information Guide, you can obtain
one online from the website at http://www.lenovo.com/UserManuals.
Pre-disassembly instructions
Before proceeding with the disassembly procedure, make sure that you do the
following:
1. Turn off the power to the system and all peripherals.
2. Unplug all power and signal cables from the computer.
3. Place the system on a flat, stable surface.
The CRUs for your computer including: keyboard, mouse, hard disk drive,
optical drive, PCI express adapter, memory card reader module, and memory
module.
This part contains instructions for replacing the following parts:
• Harddiskdrive(Followsteps:
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